Furnace base



Sept. 10, 1929. H. w. NEAL 1,728,072

FURNCE` BASE Filed March 7, 1929 Z z v g In /NVElVTo/z, Harry W Neal,

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Patented Sept. 10,r 1929.

eieren Sraras HARRY W. NEAL, OF INDIANAPOLIS, NDIANA, ASSIGNR TO' HALL-NEAL FUR/NACE COMPANY, OF INDANAPOLIS' INDIANA.

FURNACE BASE.

Application filed March 7, 1929. Serial No. 344,842.

lll`his invention relates to house heating furnaces and particularly to the base of such furnaces. rieretofore, furnaces have been commonly mounted on a cast iron spider having an outer ring to support the furnace wall and a plurality of bars extending` integrally therefrom to an inner ringv fitted around the base of the ash pit. Most floors, usually basement floors, are uneven and in levelling up the ring, blocking would be placed under the low side of the ring., with the result that lack ofy uniform support under the ring would cause the cast iron ring to crack or break and permit air to enter within the furnace wall `carrying coal or ash dust along with it.` Furthermore, such rings were exceedingly diiicult to pack and ship about the country and a great loss in breakage was occasioned due to their inherent fragile nature. i

By invention, I overcome cultics, and not only provide a rigid nonbreathable base butralso provide means per initting the quick aligning of the ash pit in relation to the ring and in anchoring the ash pit to one side of the ring to permit the pit to expand and contract at will therefrom without causing any liability of breakage of the support thereunder. f

in describing the invention, reference 1s made to the accompanying drawing, in which- 1 is a fragmentary side elevation of a furnace embodying' the invention;

Fig. 2, a horizontal section on the line 2-2 in Fig. 1;

Fig. 8, a vertical section on the line 3 3 in `Fig. 2;

Fig. t., a vertical section on the line 1-11 in Fig. 2; f

Fig. 5, a detail in top plan View of the front section of the base ring; and' ltig. 6, a vertical section through the base ring.

Lilie characters of reference indicate like parts throughout the several views of the drawing.

l roll a length of T-bar 1() to form substantially a circular' ring with the leg 11 of the bar extended vertically therefrom,

these difiiand between kthe ends of the bar 107 I fix therebetween `pre'ierably by weldinlfv` a length of Zfbar 12 to have its vertical leg abut by its ends the ends of the vertical legi 11 of the bar 10, and to have its lower hori-ir zontal flange projecting forwardly in the plane of the base of the bar/10. -The upper horizontal leg of the Z-bar 12 yprojects rearwardly with its top face in the plane of the top edge of the leg 11. `Each end of this top horizontal leg of the Z-bar terminates in an up-turned lug 13,y Figs. 2, 4 and 5. y l preform four bars 14 to have their endsr bent backwardly 135 degrees from the bars and then arrange these bars 14, as in Fig. '2 to have the bent ends Contact one another so as to define a square by Jthe bars and weld the ends together over the area of contact to form a unitary spider which is positioned on the formed 'lbar 10 from the top side to have one pair of the bar ends coming un-y der the center of the top horizontal flange of 'the Z-bar 12, Fig. .2, and the ends of the other pairs of the bent bar ends rcontacting the ibar leg 11 at intervals of 90 degrees therearound to position the square defined by the bars 111 vdiagonally in reference to the P-bar 12.` rEhe bar ends are welded to` the 'IT-bar 10. i f f 'The aslrpit 15 of the furnace iscircular with a projecting rectangular passageway 1Q extending therefrom to the ash-pit` door 1r. f

The'ashfpit 15 has a centering mark 1S on itsrear side and is setr upon the bars 14 whereby the'line of Contact of the two -rearmost bar ends if extended jwould pass through the mark 18, andthe front edge of the ypassagmvay 16 is brought forward.r to coincide with the top forward edge of the Vertical leg of the Z-bar 12 to have the y passageway drop in between the two lugs 13. A length of angle-iron 19-is welded to thetop faceof the lower horizontal flange of the Z-bar 12 at its forwardedge to a slot between the angle-iron and the vertical leg of the Z-bar 12. A door frame 20 has its lower end entered into this slot and is secured to flanges 21 of the ash-pit passage` way 16r by means of' bolts whereby the ash- CII pit is relatively located and secured in position with respect to the ring formed by the T-bar 10.

The T-bar 10 may be leveled on the supporting floor 22, in Fig. 6, and cement 23 applied around its inner side to form an air seal therebetween. v The wall 2Liof the furnace is fitted around the bar l0 to rest thereon and bear against the leg 11, the rolled T-bar l0 having a smooth even surface whereby the wall may be snugly united thereto.

I claim:

1. In a furnace, a base bar having an inverted T-section being formed to define the shape of the furnace wall and having its ends brought around and directed toward each other, a Z-bar interposed and secured between the ends of thebase bar to have the upper flange ofthe Z-bar directed horizontally inwardly, up-turned lugs at the ends of said upper flange, and a built up spider mounted within and secui'ed to said base bar.

2. In a furnace, a base bar having an inverted T-section being formed to define the shape of the furnace wall and having its ends brought around and directed toward each other, a Z-bar linterposed and secured between the ends of the base bar to have the upper flange of the Z-.bar directed horizontally inwardly7 up-turned lugs at the ends of said upper flange, and a builtup spider mounted within and vsecured to said base bar, an ash-pit resting on the spider, and a door-frame having its lower end contacting the forward sideof said Z-bar and secured to said ash-pit.

3. In a furnace, a basebar having an inverted T-section being formed to define the shape of the furnace wall and 'having its ends brought around and directed toward each other, a Z-bar interposed andsecured between the ends o f the base bar to have the upper flange of the Z-bar directed horizontally inwardly, up-turned lugs at the ends of said upper flange, and a built up spider mounted within and secured to said base bar, an ash-pit rest-ing on the spider, and a door-frame having its lower end contacting the forward side of said Z-bar and secured to said ash-pit, said Z-bar having a slot formed on its lower forwardly projecting flange to receive the lower end of said door-frame therein.

4, In a furnace, a base .comprising a mounting ring having an inverted T-section, a plurality of preformed bars havingA their ends united one to the other and secured to and supported by said ring, and a straight section in said ring defining the front of the furnace.

5. In a furnace, a base comprising a mounting rinf having an inverted T-section, a plurality of preformed bers having their ends united one to the other and secured to and supported by said ring, and a straight section in said ring defining the front of the furnace, said bars defining an open rectangle therebetween and positioned to have a diagonal thereof normal to the center of said straight section.

6. In a furnace, a base comprising a mounting ring having an inverted T-section, a plurality of preformed bars having their ends united one to the other and secured to and supported by said ring, and a straight section in said ring dening the front of the furnace, said straight section bei-ng formed by a length of Z-bar interposed and secured between the ends of said ring to have a top horizontal flange extending therefrom inwardly from the vertical face of the bar.

7. In a. furnace, a base comprising a mounting ring having an inverted 'T-section, a plurality of preformed bars having their ends united one to the other and secured to and supported by said ring, and a straight sectionr in said ring defining the front of the furnace, said straight section being formed by a length of Z-bar interposed and secured between the ends of said rin@ to have a to horizontal flange extendsie 

